Using this StopTech slotted sport rotor is easy. Just replace your old factory brake rotor with this one. It's a direct fit for 2016 - 2021 Subaru WRX models with Eyesight Technology. When installing, make sure to clean the mounting surface to ensure a good fit. For maintenance, regularly check the rotor for any signs of wear or damage. The black e - coating helps protect it from corrosion, but avoid using harsh chemicals on it. If you notice any excessive squealing or reduced braking performance, it might be time to inspect the rotor and pads. This rotor is designed for both street and track use, so whether you're commuting or having fun on the track, it should serve you well.